• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
The Garden Room & Annexe Guide Logo
Swift UnlimitedExplore what’s possible
Exceptional Spaces, Endless PossibilitiesFit for Life – Fit for PurposeWhatever your PassionDesigned for Work and LifeBeautifully Built, Uniquely YoursDedicated Specialised RoomsLeisure and Pleasure
The Garden Room & Annexe Guide Logo
Swift UnlimitedExplore what’s possible
Exceptional Spaces, Endless PossibilitiesFit for Life – Fit for PurposeWhatever your PassionDesigned for Work and LifeBeautifully Built, Uniquely YoursDedicated Specialised RoomsLeisure and Pleasure
  • Buyers Guide
        • Introduction
          • What is a garden room?
          • How to buy a garden room
          • Buyers doubts
          • Pre-designed garden rooms
          • Modular garden rooms
        • Rules & Regulations
          • Garden Room Planning Permission Guide
          • Permitted Development Overview
          • Building Regulations
        • Build & Installation
          • Off-site construction
          • Complete on-site builds
          • Garden rooms can be craned in
          • Garden room shell builds
          • Turnkey projects
        • Design Consultations
          • Start designing your garden room
          • What to expect from a design consultation
          • Buying a garden room online
          • Comparing garden room quotes
  • Garden Rooms
        • Examples By Company
          • A to Z of Companies
        • Examples By Use
          • Small Garden Rooms
          • Garden Offices
          • Garden Gyms
          • Art & Creative Studios
          • Soundproof Garden Studios
          • Granny Annexes
          • Explore More Uses
        • Examples by Design Feature
          • With Storage Room
          • With Toilet or Shower Room
          • With Composite Cladding
          • With Canopy
          • With Covered Seating Area
          • With Pitched Roof
  • Garden Living Annexes
        • By Footprint Size
          • Less than 25sqm
          • 25sqm to 35sqm
          • 35sqm to 45sqm
          • 45sqm to 55sqm
          • 55sqm and Above
        • By Room Layout
          • Garden Bedroom
          • Open Plan
          • One Bedroom
          • Two Bedroom
          • 3 and 4 Bedroom
        • Useful Guides
          • What Is an Annexe?
          • How to Build a Granny Annexe
          • Planning and the Caravan Act
          • How Much Does a Granny Annexe Cost?
          • Renting a Granny Annexe
          • Council Tax on a Granny Annexe
          • Granny Pods
          • Annexe Show Sites
          • Ex-Display and Second-Hand Annexes
          • Granny Annexe Projects
  • Price Guides
        • Garden room prices
          • How much does a garden room cost?
          • Garden room price calculator
          • Cheap garden rooms
          • Garden rooms £10,000–£20,000
          • Do garden rooms add value?
        • Annexe prices
          • How much does a granny annexe cost?
          • Council tax on a granny annexe
          • Ex-display and second-hand annexes
          • Renting a granny annexe
        • Paying for it
          • Garden room finance options
          • Protecting your investment
          • Special offers
        • Other ways to buy
          • Second-hand and ex-display
          • Renting a garden office
  • Directory
  • About Us
        • About Us
          • Our Story
          • Work With Us
          • Newsletter
        • Contact Us
          • Our Contact Details
        • Website Policies
          • Revisit Your Cookie Settings
          • Cookie Policy
          • Privacy Policy
          • Acceptable Use Policy
          • Website Terms of Use
  • Your Guide
Garden room project · Ark Design Build

Cedar garden room with hidden store

A 5m × 6m cedar room in Sevenoaks with a store hidden behind it, reached through a door matched to the cladding.


Published 12 November 2020 · Updated 23 October 2026 · 3 minute read · Written by The Garden Room & Annexe Guide

Cedar garden room with hidden shed by Ark Design Build
Ark Design Build  5m × 6m, Sevenoaks

Incorporating a storage shed into a garden room building is a popular choice these days. In most designs, the main room and storage shed sit side by side, typically accessed via doors on the front elevation.

However, you’re not limited to having the two rooms side by side. If you have the space, you could position the storage room behind the main living room. This option creates a hidden room-completely concealed from the front of the building.

This recent project by Ark Design Build is a fine example. From the front, there’s no indication of the storage room behind. The storage room is accessed via a ‘secret door’ at the far end of the left-hand wall, carefully matched to the Cedar wall cladding, making it almost invisible at first glance.

Cedar garden room with hidden shed by Ark Design Build
The secret door  matched to the cedar

Built in Sevenoaks, Kent, the building has an overall footprint of 5m x 6m. The key feature of the main room is the 4m-wide, triple-leaf sliding doors, which create a fully glazed front wall. A full-height window on the left-hand wall cleverly wraps the glazing around the corner.

Cedar garden room with hidden shed by Ark Design Build
Triple sliding doors  4m wide
Cedar garden room with hidden shed by Ark Design Build
The corner window

A shallow hood detail frames the sliding doors and allows for LED downlights to be fitted above, creating a stunning curtain of light at night along the front of the building.

Cedar garden room with hidden shed by Ark Design Build
Lit at night

At a glance

  • Size: 5m × 6m overall.
  • Built for: Relaxing and entertaining, with a kitchen area and wine store.
  • Construction: The store sits behind the main room, out of sight from the front.
  • Finishes: Cedar with 4m triple sliding doors and a light grey composite deck; plaster inside, OSB in the store.
  • Company: Ark Design Build, who also built the bench and log store.

Part of our entertainment room guide →

Visit the Garden Annexes website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
No planning permission
required in most cases
Garden offices to
self-contained annexes
Based in Brighton & Hove,
building across England
See our work →
Inside

High-spec interior finishes

Inside, the room has a light, modern finish. The walls and ceiling have been plastered and decorated, providing a high-spec finish comparable to a new-build house. The room is fully wired with stylish brushed steel sockets and switches installed by the Ark team.

Cedar garden room with hidden shed by Ark Design Build
The interior

The highly insulated building features a modern, slimline electric wall heater. The owners plan to add a wood burner in the future, which will make a lovely addition. However, this task must be completed by a registered wood burner installer to comply with Building Regulations.

Storage

Practical storage room

While the main room has a high-spec plastered and decorated interior, the storage room is more practical. The floor, walls, and ceiling are all finished with OSB boards-a durable and strong material perfect for hanging shelves or tools.

LED downlights have been fitted in the ceiling, and power sockets have been installed above the custom bench area.

Cedar garden room with hidden shed by Ark Design Build
The store
Details

Bespoke design features complete the project

Ark Design Build are bespoke design specialists, crafting buildings around individual customer needs. Their service includes attention to small design details that complete the project.

Cedar log store next to the garden room
Cedar log store

For this project, the Ark Design Build team built a custom bench in the storage room, created a small Cedar wood store, and fitted a kitchen area in the main room, complete with a wine store to enhance the space for entertaining.

Cedar garden room with hidden shed by Ark Design Build
The kitchen area
Outside

Large composite deck

A large light-grey composite deck has been installed at the front of the building, extending the inside-outside feel of the room when the doors are opened.

Cedar garden room with hidden shed by Ark Design Build
The deck

Composite decking has become a popular choice in garden room design, as it retains its colour and doesn’t become slippery like timber decking. Composite decking comes in a range of colours, and shades of grey look particularly striking against the natural beauty of Cedar cladding.

Planning something similar?

Learn more about Ark Design Build

Learn more about Ark Design Build’s work. Chat with the Ark Design Build team on 07896 196 718 or send them an email at contact@arkdesignbuild.co.uk. Explore www.arkdesignbuild.co.uk to see more examples of their work.

Visit Ark Design Build More Ark Design Build projects
More projects like this Entertainment rooms Garden rooms with storage 30sqm+ garden rooms
Read the guides What garden rooms cost Permitted development What is a garden room?

Published 12 November 2020 · Photographs courtesy of Ark Design Build.

Visit the Garden Spaces website
Visit the Timeless Garden Rooms website
Visit the Garden2Office website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
No planning permission
required in most cases
Garden offices to
self-contained annexes
Based in Brighton & Hove,
building across England
See our work →
Visit the Modern Garden Offices website

Primary Sidebar

Visit the Garden Annexes website to explore their homes in the garden
Visit the Garden Spaces website
Warwick Buildings Warwick Buildings Garden Rooms
Garden Rooms
From £7,750 including VAT, delivery and installation
Insulated for year-round use 21 buildings on show near Southam Flat, pitched & curved roof designs 10-year guarantee Online design & price configurator Made in Warwickshire since 1988 100mm walls, five layers thick
See garden room options
Visit the Bridge Garden Rooms website
ARK
Bespoke Garden Rooms
& Annexesacross the South East
Garden rooms, annexes & studios Self-contained annexes Bespoke — designed around you Planning & building regs handled Designed for Permitted Development Ideal guest accommodation Offices, studios, gyms & more Insulated for year-round use Fully project-managed build Handcrafted quality throughout
Explore our work →
Excellent ★★★★★Trustpilot
Visit the Modern Garden Rooms website
Uniquely designed garden
rooms & annexes
Bespoke, tailored to
you & your garden
No planning permission
required in most cases
Garden offices to
self-contained annexes
Based in Brighton & Hove,
building across England
See our work →
Cosy Garden Rooms
FAST INSTALLATIONS FULLY INSULATED 10 YEAR GUARANTEE
Bespoke Garden Rooms
Get Your FREE Quote
SIPS Garden RoomsBespoke garden rooms & annexes
Design
Approvals
Build
Handover
From first sketch to
handing over the keys.
Bespoke SIP garden rooms and annexes, no two the same.
One-off commissions too — a ballet studio, an art studio, a garage for the cars.
Approvals, build and handover managed by one team.
A fixed written price before any work starts.
Made offsite, so the work in your garden is quick and clean.
Book a free consultation
Crusoe Garden Rooms
Entertainment Rooms
Cinema, games and bar
rooms at the end of the garden
Laid out around the screen or the table Hand-built on site, not prefabricated More than 350 garden rooms built Western Red Cedar as standard Electrical connection included Free site visit, in person or by video Building across the UK from Nottingham
See entertainment rooms

Bespoke garden annexes

More than a garden room: a complete annexe.

Design, planning, foundations, agreed connections and installation, in one fixed-price quote.

1-bedroom from£85,000
2-bedroom from£130,000
See our granny annexes

The Green Room · 01536 358387

Useful Links

Planning Permission Guides

A to Z of Companies

Garden Rooms

Garden Living Annexes

Garden Room & Annexe Directory

Contact Us

Contact Us

Work with Us

Website Policies

© 2026 The Garden Room & Annexe Guide. All Rights Reserved.
The Garden Room & Annexe Guide is powered by the team at Square Meter Media Limited